Mitsubishi PLC Controller Module FX3S-20MR/DS

Series#: Mitsubishi

Product Details

Mitsubishi PLC Controller module FX3S-20MR/DS FX3S-20MT/DS – compact, high-performance control for small to medium automation systems.
Built-in 20 I/O points (12 inputs / 8 outputs) in relay or transistor sink/source configurations.
Powerful built-in high-speed counters: up to 60 kHz 1-phase, 30 kHz 2-phase for precise motion control.
Rich memory: 7,680 auxiliary relays, 4,096 state relays, 320 timers, 235 counters, and 8,000 data registers.
Supports EEPROM latching for critical data retention without battery backup.
Compact footprint and easy expansion via optional FX3U-compatible modules.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The Mitsubishi PLC Controller module FX3S-20MR/DS and FX3S-20MT/DS are engineered to deliver robust, real-time control in demanding industrial environments. With a versatile mix of 20 I/O points and support for high-speed counting up to 60 kHz, these modules excel in applications requiring precise timing, motion sequencing, and data logging. Their EEPROM-based latching ensures critical parameters survive power cycles, while the extensive auxiliary relay and register set provide ample storage for complex logic. Designed for seamless integration into existing Mitsubishi systems, the FX3S series offers a cost-effective yet powerful solution for OEMs and system integrators.

Parameter	FX3S-20MR/DS (Relay Output)	FX3S-20MT/DS (Transistor Sink Output)
Auxiliary Relays	7,680 total: 384 general (M0-M383), 1,152 EEPROM latched (M384-M1535), 6,144 general/optional latched (M1536-M7679)	Same as FX3S-20MR/DS
State Relays	4,096 total: 1,000 EEPROM latched (S0-S999), 3,096 general/optional latched (S1000-S4095)	Same as FX3S-20MR/DS
Timers	320 total: 206 x 100 ms (T0-T199, T250-T255), 46 x 10 ms (T200-T245), 68 x 1 ms (T246-T249, T256-T319)	Same as FX3S-20MR/DS
Counters	235 total (16-bit and 32-bit): 36 general (C0-C15, C200-C219), 199 EEPROM latched (C16-C199, C220-C234)	Same as FX3S-20MR/DS
High-Speed Counter Speed	1-phase: 60 kHz / 4 points max, 10 kHz / 2 points; 2-phase: 30 kHz / 2 points, 5 kHz / 1 point	Same as FX3S-20MR/DS
Data Registers	8,000 total: 128 general (D0-D127), 972 EEPROM latched (D128-D1099), 6,900 general/optional latched (D1100-D7999)	Same as FX3S-20MR/DS
Extension Registers	24,000 (R0-R23999)	Same as FX3S-20MR/DS
Extension File Registers	24,000 (ER0-R23999) internal/optional memory	Same as FX3S-20MR/DS

I/O Configuration: 12 inputs (24 VDC sink/source) and 8 outputs (relay or transistor sink) – flexible for diverse load types.
High-Speed Performance: Integrated counters support up to 60 kHz single-phase and 30 kHz two-phase inputs, ideal for encoder feedback and speed control.
Data Retention: EEPROM latching on key relays, state relays, and data registers eliminates battery dependency for critical process data.
Programming Compatibility: Fully programmable via GX Works2/3 software, supporting ladder, SFC, and structured text.
Environmental Rating: IP20 enclosure, operating temperature 0–55°C, suitable for cabinet-mounted industrial control.
Communication Ports: Built-in RS-422/RS-485 for programming and basic networking; optional expansion for Ethernet or MODBUS.